As you may know, the original way of creating automation in Salesforce was workflows. Then came processes. Both were superseded by flows.
While you can technically still create workflows and processes today, they are legacy. Eventually they will be fully deprecated.
No need to worry just yet. According to this Salesforce article, there’s no official plans to retire this functionality.
So take advantage of the long runway and build a plan to convert them into flows.
Now, if you only have a few dozen workflows and flows, this will probably be a straightforward process. If there are hundreds of them, well, you’re in for a ride!
But refactoring things into flows will give you the chance to confirm whether these automations are actually required or not. It’ll also give you a chance to simplify and consolidate business logic.
BTW, if you’re a nonprofit using NPSP, Laura Meerkatz created a handy tool to convert commonly-used workflows into flow.
The takeaway
Flow is the way. Convert, simplify, and consolidate while there’s no direct pressure.